The present invention relates to a floating-type buoyancy-adjustable fishing weight and, more particularly, to a fishing weight used during fishing, comprising: a first upper cap, which has the shape of a hollow post, which has an open lower surface, and which has a first through-hole bored on one side of the upper surface thereof； a support rod, which is a tube member having a second through-hole bored therein, an end of the support rod being installed in the first through-hole on the inner surface of the first upper cap； a body unit comprising a post-shaped body, a third through-hole that penetrates the upper and lower surfaces of the body, and a first coupling groove formed on one side of the outer peripheral surface of the body in a ring shape, the other end of the support rod penetrating the third through-hole and being installed on one side of the support rod； and a first watertight member, which has a ring shape, and which is installed on the first coupling groove such that, when the upper portion of the body unit is inserted into the inner space of the lower surface of the first upper cap, the inner surface of the first upper cap and the upper portion of the body unit are forced against each other, wherein a fishing line penetrates the first through-hole, the second through-hole, and the third through-hole, which are arranged on a straight line, and the support rod then floats on one side of the fishing line and becomes fixed. The present invention guarantees that, even if a fisher changes the fishing equipment or the fishing technique during fishing, the buoyancy of the fishing weight can be adjusted without adding/reducing sinkers, thereby substantially improving the convenience of the fisher.La présente invention concerne un poids de pêche à flottabilité réglable de type flottant et, plus particulièrement, un poids de pêche utilisé pendant la pêche, comprenant : un premier capuchon supérieur, qui a la forme d'un montant creux, qui présente une surface inf
